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grownup

[grohn-uhp] /ˈgroʊnˌʌp/
noun
1.
a mature, fully grown person; adult.
Origin of grownup
1805-1815
1805-15; noun use of verb phrase grow up

grown-up

[grohn-uhp] /ˈgroʊnˈʌp/
adjective
1.
having reached the age of maturity.
2.
characteristic of or suitable for adults:
grown-up behavior; grown-up fiction.
Origin
1625-35; adj. use of verb phrase grow up
Related forms
grown-upness, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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Examples from the Web for grownup
Contemporary Examples
Historical Examples
  • It was necessary, no doubt, that grownup people should dress themselves up and go forth to pay calls.

    Dream Days Kenneth Grahame
  • The grownup straightened away from the fence, preparing to walk off.

    Games Katherine MacLean
  • If I had been a grownup man, and she a young lady, she couldn't have tossed her head or giggled more.

    The Lamplighter Maria S. Cummins
  • Onward and still onward to a glorious end, left entirely to myself and entrusted with an important task like a grownup person!

  • After all, it came to him suddenly as a harsh discovery that she might be in a sense regarded as grownup.

    Ann Veronica H. G. Wells
British Dictionary definitions for grownup

grown-up

adjective
1.
having reached maturity; adult
2.
suitable for or characteristic of an adult
noun
3.
an adult
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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13
17
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